CVE-2025-13399— Insecure Encryption in Communication with the Web Interface on TP-Link VX800v
Quick assessment
Affected
TP-Link Systems Inc. VX800v v1.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
TP-Link VX800v是中国普联（TP-Link）公司的一款VoIP网关。 TP-Link VX800v 1.0版本存在安全漏洞，该漏洞源于Web接口应用层加密存在弱点，可能导致相邻攻击者暴力破解弱AES密钥并解密被拦截流量。
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I. Basic Information for CVE-2025-13399
Vulnerability Information
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Vulnerability Title
Insecure Encryption in Communication with the Web Interface on TP-Link VX800v
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to confidentiality, integrity, and availability of transmitted data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link VX800v 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link VX800v是中国普联（TP-Link）公司的一款VoIP网关。 TP-Link VX800v 1.0版本存在安全漏洞，该漏洞源于Web接口应用层加密存在弱点，可能导致相邻攻击者暴力破解弱AES密钥并解密被拦截流量。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TP-Link Systems Inc. | VX800v v1.0 | 0 ~ 800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702) | - |
|
II. Public POCs for CVE-2025-13399
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2025-13399 (1)
Same Patch Batch · TP-Link Systems Inc. · 2026-01-29 · 7 CVEs total
| CVE-2026-1457 | Authenticated RCE Vulnerability Due to Buffer Overflow on TP-Link VIGI C385 | |
| CVE-2025-15548 | Missing Application-Layer Encryption in Web Interface Endpoints on TP-Link VX800v | |
| CVE-2025-15543 | Read-Only Root Access via USB Storage Device in TP-Link VX800v | |
| CVE-2025-15542 | Denial of Service (DoS) of VoIP Communication on TP-Link VX800v | |
| CVE-2025-15541 | Access to System Files via SFTP on TP-Link VX800v | |
| CVE-2025-15545 | Insufficient Backup File Upload Input Validation on TP-Link Archer RE605X |
IV. Related Vulnerabilities
Same product: VX800v v1.0
Same vendor: TP-Link Systems Inc.
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V. Comments for CVE-2025-13399
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